201150810 has 128 divisors (see below), whose sum is σ = 622080000. Its totient is φ = 45299520.

The previous prime is 201150809. The next prime is 201150821. The reversal of 201150810 is 18051102.

It is a super-2 number, since 2×201150810² = 80923296727312200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 133441 + ... + 134939.

It is an arithmetic number, because the mean of its divisors is an integer number (4860000).

Almost surely, 2^201150810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201150810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311040000).

201150810 is an abundant number, since it is smaller than the sum of its proper divisors (420929190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201150810 is a wasteful number, since it uses less digits than its factorization.

201150810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 201150810 is about 14182.7645401029. The cubic root of 201150810 is about 585.9230660764.

The spelling of 201150810 in words is "two hundred one million, one hundred fifty thousand, eight hundred ten".